Restore Your Vehicle’s Brain without the Dealer Hassle
If you’re dealing with a cascade of bizarre electrical issues in your Buick LaCrosse, Chevrolet Malibu, or Cadillac SRX, the Body Control Module (BCM) is often the culprit. As a technician with over two decades of experience, I’ve seen it all: power windows with a mind of their own, dashboard lights flashing like a Christmas tree, or a car that simply refuses to start. These aren’t just annoyances; they’re signs that your vehicle’s central command center is failing. The BCM governs everything from your interior lights and power locks to the security system and communication between other vital modules. When it goes bad, it can feel like your car is possessed.
This is where our service provides a straightforward, reliable solution. Instead of paying steep dealership prices for a new module and then hundreds more for programming, you can get a fully functional, plug-and-play 2014-2016 LaCrosse BCM. We handle the complex part for you. Our mail-in cloning service transfers all the critical data—including VIN, mileage, and key information—from your original BCM to this replacement unit. The result? A module that is 100% ready to install the moment you receive it, with no additional programming or dealer visits required.
Case Study: The Ghost in the Machine
I remember a 2015 Chevy Malibu that came into my shop with a truly baffling set of symptoms. The owner had already replaced the battery and alternator, but the radio would still cut out, the turn signals worked intermittently, and sometimes the car wouldn’t recognize the key fob. He was frustrated and had spent a lot of money chasing ghosts. After hooking up my scan tool, I found a flurry of U-codes (communication errors) pointing to a network failure. The data stream from the BCM was erratic. We confirmed the BCM was the source of the problem. By using a cloned BCM, we had the car back to perfect working order in under an hour of shop time, saving the customer from a costly and time-consuming trip to the dealer.
Signs Your Body Control Module is Failing
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system or keyless entry system malfunctioning.
- ✔ A persistent “Service Theft System” or other warning messages on the dash.
- ✔ Communication Diagnostic Trouble Codes (DTCs), such as U0100, U0140, or other U-series codes.
- ✔ The vehicle won’t start, but the battery and starter are confirmed to be good.
Your Straightforward Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the BCM: On most compatible models like the LaCrosse and Malibu, the BCM is found behind the driver’s side (LH) kick panel. On other models, it may be in the dash, cowl, or engine compartment. Consult your vehicle’s service manual for the exact location.
- ✔ Remove the Old Module: Carefully unplug the wiring harness connectors from your original BCM. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in place of the old one. Securely reconnect all wiring harnesses, ensuring each plug clicks firmly into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair was successful.
- ✔ Post-Install Checks: In some cases, an airbag light may appear or a brake pedal position relearn might be needed. Please see the notes below for more details on these simple procedures that may require a professional scan tool.
Verified Vehicle Compatibility
This module is a direct fit for vehicles using part numbers 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, or 13594564. Please verify your part number before ordering. It is compatible with the following models:
- 2014-2015 Buick LaCrosse
- 2016 Buick LaCrosse (ID 13580698 or 13594564)
- 2014-2017 Buick Regal
- 2014-2015 Chevrolet Malibu
- 2016 Chevrolet Malibu (VIN 1, Limited)
- 2014-2015 Chevrolet Volt
- 2014-2016 Cadillac ELR
- 2014-2015 Chevrolet Camaro
- 2014-2016 Cadillac SRX
- 2014-2016 Chevrolet Spark (EV model)
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, certain vehicle systems may require a ‘handshake’ with the new BCM. This is normal. If you encounter the following, a professional scan tool will be needed:
- Airbag System Sync: If the airbag warning light is on after installation, the ‘Setup SDM Primary Key in BCM’ procedure is required to sync the systems.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary for proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What exactly is a ‘cloning’ service?
Cloning is a process where we transfer the complete software and vehicle-specific data (like the VIN, security info, and mileage) from your original BCM to the replacement unit. This makes the new module an exact digital copy of the old one, allowing it to work in your car without any additional dealer programming.
Do I need to program this module after I receive it?
No. Our service ensures the module arrives pre-programmed and ready for installation. It’s a true plug-and-play solution designed to get you back on the road quickly.
How does the mail-in process work?
After you place your order, we will contact you with detailed instructions on how to ship your original BCM to us. Once we receive it, we perform the cloning service and ship both your original and the newly programmed replacement BCM back to you, typically within 1-2 business days.
Is there a core charge for this part?
No, there is no core charge. We clone the data from your original module and send it back to you along with the replacement. You can keep your original module.
What if the airbag light comes on after I install it?
This is an occasional and normal security measure. A repair shop with a professional-grade diagnostic tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system with the new BCM and turn off the light.